The Bomag 05901427 Square Ring is a genuine OEM sealing component designed for Bomag MPH and RS-series recycler/stabilizers, including the MPH 121, MPH 122, MPH 122-2, MPH 125, MPH 364-2, MPH 600, MPH 600 3B/4i-PB, MPH 600 EU-FLEX, RS 360 TIER-4F, and RS 650. Sourced directly from Bomag, this square ring meets the original engineering tolerances and material specifications required to maintain a proper hydraulic or fluid seal in demanding stabilizer and recycling applications. With confirmed compatibility across a wide range of Bomag recycler/stabilizer models, this is the correct replacement to specify when servicing these machines.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Bomag's original material and compression specifications, ensuring consistent sealing performance specific to recycler/stabilizer hydraulic and fluid systems
- Direct Drop-In Replacement — matches the original square ring profile exactly, seating correctly into its groove without modification or trimming
- Broad MPH and RS Series Coverage — confirmed fit for MPH 121, MPH 122, MPH 122-2, MPH 125, MPH 364-2, MPH 600, MPH 600 3B/4i-PB, MPH 600 EU-FLEX, RS 360 TIER-4F, and RS 650 recycler/stabilizers
- Leak Prevention Where It Counts — a properly seated square ring prevents fluid bypass and pressure loss in critical circuits; a worn or hardened ring leads to leaks that compromise system function and contaminate surrounding components
- Verified Part Number Traceability — order with confidence using Bomag part number 05901427, cross-referenced directly to the machines listed above
A square ring is a sealing element similar in function to an O-ring but with a flat, square cross-section that provides greater surface contact and improved resistance to rolling or twisting within its groove. In recycler/stabilizer machines like the Bomag MPH and RS series, these rings are used in hydraulic and fluid circuit connections where maintaining a reliable, leak-free seal is essential to operational efficiency. When a square ring degrades — through hardening, compression set, or surface cracking — fluid leaks develop that can reduce hydraulic pressure, cause component wear, and lead to unplanned downtime on the job.
Part Details
| Part Number | 05901427 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Square Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Recycler / Stabilizer | MPH 121 | 00817587 |
| Recycler / Stabilizer | MPH 122 | 00817595 |
| Recycler / Stabilizer | MPH 122-2 | 00818177, 00818727, 00818911, 00824987 |
| Recycler / Stabilizer | MPH 125 | 00818273, 00818681, 00818909 |
| Recycler / Stabilizer | MPH 600 | 00824097, 00824099 |
| Recycler / Stabilizer | MPH 600 3B/4i-PB | 00824645 |
| Recycler / Stabilizer | MPH 600 EU-FLEX | 00824751 |
| Recycler / Stabilizer | MPH 364-2 | 00824973 |
| Recycler / Stabilizer | RS 360 TIER-4F | 00825055 |
| Recycler / Stabilizer | RS 650 | 00825131 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
